package com.song.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebFilter({"/admin/index.jsp","/admin/register.jsp","/admin/views/*"})
public class LoginFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;

        Object admin = request.getSession().getAttribute("admin");
        if (admin != null) {
            filterChain.doFilter(request,response);
        }else{
            response.sendRedirect("/admin/login.jsp");
        }
    }

    @Override
    public void destroy() {
    }
}
